Hi,
the arglist display for functions with default arguments is misleading:
(defun foo (&key (x " ")) x)
shows (foo &key (x )) in the minibuffer.
(defun foo (&key (x "bar")) x)
shows (foo &key (x bar)).
I'd rather have it show (foo &key (x "bar")). This is with CVS SLIME from today, and slime-fancy.
Cheers, Michael